This study investigated the feasibility of concurrently and randomly sampling examinees and items in order to estimate group achievement. Seven 32-item tests reflecting a 640-item universe of simple open sentences were used such that item selection (random, systematic) and assignment (random, systematic) of items (four, eight, sixteen) to forms…

The bias attributable to nonresponse in population estimates in the field of education was studied. Data were collected from responses to mathematics and science exercises administered by the National Assessment of Educational Progress to a probability sample of 17-year olds, as well as a probability sample selected from nonrespondents.…

This study at an academic library used a simulation technique (1) to analyze the extent to which queues develop at a reference desk during peak periods, (2) to propose alternative staffing models to reduce queues, and (3) to examine the cost effectiveness of the alternatives. (Author/JAB)

Procedures are described for teaching statistical inference and decision-making without lengthy pre-requisite work in descriptive statistics and probability theory. (JLH)

In 1983 the Office of Affirmative Action and Compliance at the University of Wisconsin-Madison surveyed 300 randomly chosen employees to determine the number of disabled persons in its work force. The results are discussed and the survey is appended. (MLW)

Describes how microcomputers were integrated into a large introductory sociology course to teach basic sociological concepts. Included is a description of the teaching principles which guided the project's instructional design, a description of the formation and operation of the student research teams, and several concrete examples of the problems…

The variance of the sample difference and the power of the "F" test for mean differences were studied under group matching on covariates and also under random assignment. Results shed light on systematic assignment procedures advocated to provide more precise estimates of treatment effects than simple random assignment. (TJH)

One method to correct for selection bias in comparing Scholastic Aptitude Test (SAT) scores among states is presented, which is a modification of J. J. Heckman's Selection Bias Correction (1976, 1979). Empirical results suggest that sample selection bias is present in SAT score regressions. (SLD)

A sample of 396 general dentists, oral surgeons, and periodontists were interviewed to determine their experience in treating patients infected with human immunodeficiency virus HIV, factors associated with their knowledge about AIDS, and their sources of information regarding AIDS. Fifty-six percent indicated a reluctance or inability to treat an…

Reports on a study that involved identifying and interviewing a sample of adult secondary distance education students to discover what learning strategies the group uses. Recommendations included prior screening of all adult secondary distance education students and development of a study technique program to teach learning strategies. (Author/CH)

The detrimental effects of nonresponse bias are particularly significant given the widespread use of the survey data collection method in educational surveys. Current methods for remediating nonresponse bias in educational surveys are explored and critiqued. (Author/LMO)

The question studied was whether opinions of persons interviewed about educational interests and perceived needs at randomly selected geographic locations in a metropolitan area differed from those of three other persons living in the immediate vicinity. With few significant exceptions, no statistically significant differences were found between…

The relationship between item parameter values obtained from independent Birnbaum (l968) model calibrations of the same item set from two different samples is examined. (Author)